Can end lining machine



June 23, 1931. N. TROYER ET AL CAN END LINING MACHINE Filed Oct. 1 192 4 Sheets-Sheet INVENTORS NELSON TRQYER iY PM: E: RSON v ATTORNEY June 23, 1931. N.'TROYER ET AL CAN END LINING MACHINE 4 Sheets-Sheet 2 Filed Oct. 1 1928 June 23, 1931. N. TROYER ET AL. 1,311,162

CAN END LINING MACHINE Filed Oct. 1 192 4 Sheets-Sheet 3 1NVENTORS NELSON TROYER ATTORNEY June 23, 1931. N. TROYER ET AL.

CAN END LINING MACHINE Filed Oct. 1 192g 4 Sheets-Sheet 4 lbr IZI ma I00 Faust. w l//l y 7 2 f e 9 ww 8 8 w 9 5 m 5. K 1 4 m o w k H Fl F 1- HM. Www HIM 1:

INVENTORS NELSON TRoYER /%vj:u| E. :gRsoN ATTORNEY Patented June 23, 1931 UNITED STATES PATENT OFFICE NELSON TROYEB AND PAUL E. PEARSON, F SEATTLE, WASHINGTON, ASSIGNORS TO TROYER-FOX MANUFACTURING (30., OF SEATTLE, WASHINGTON, A CORPORATION OF WASHINGTON CAN END LINING MACHINE Application filed October 1, 1928. Serial No. 309,663.

This invention relates to improvements in can end lining machines of that character designed for applying a sealing compound to the flanged or grooved ends, or covers, for tin cans to insure the integrity of the joint when the ends are seamed onto the can body; the principal object of the invention being to provide a machine for this purpose whereby the work of applying the compound may be done evenly, quickly and without any waste of material, and wherein the various parts for applying the compound are easily and readily adjustable so as to accommodate can ends of various diameters.

It is also an object of the invention'to so design the machine that the can end feed mech- "anism is readily adjustable to can ends of different diameters. Also, that the can end supporting and spinning pad and the driving mechanism connected therewith are bodily removable from the machine for ready replacement by corresponding parts for can ends of various diameters.

It is a further object of the invention to provide for adjustment of the compound applying nozzle to suit can ends of difierent diameters without necessitating any adjustment of the driving mechanism. Also, to provide for the interchanging of gears in the driving connection \vhensuch is desired as a means of increasing or decreasing the rate of spinning of the ends while compound is being applied.

Other objects of the invention reside in the various details of construction and in the combination of parts and in their mode of operation, as will hereinafter be described.

In accomplishing these objects, we have provided the improved details of construction, the preferred forms of which are illustrated in the accompanying drawings, whereina.

Figure 1 is a vertical section of the machine taken centrally thereof along the path of travel of can ends delivered into the ma-' Figure 4 is a vertical cross section taken on the line 4-4 in Figure 2.

Figure 5 is a side view of parts shown in Figure 4; showing the cam actuating means for operating the nozzle valve.

a dryer of a certain type, not herein illustrated, which will receive the can ends from the lining machine directly after the compound has been applied thereto. Briefly, the present machine comprises a frame structure for supporting the various operating parts and on top of which is a hopper in which a supply stack of can ends to be lined may be contained. Operating below the hopper, is a reciprocating feed slide which advances the can ends successively and one at a time, from the lower end of the stack onto a revolubly driven pad whereby they are caused to be, spun While the compound is applied thereto. A nozzle, connected with a supply of lining compound, is adjustably supported above the pad in position to. deliver the compound to the can end flange or groove, and a valve mechanism inthe nozzle is actuated in proper synchronism with the feed mechanism to effect the delivery of the compound at the proper time and in the proper amount. Also, means of novel construction is provided for preventing any discharge of compound from the nozzle in event that no can end is in place on the pad to receive it. The same feed, mechanism which operates to deliver the can ends to the revolving pad also advances them from the pad after the compound has been applied thereto, to a position for removal from the machine to the dryer.

The operating mechanisms of the machine are supported by a cast iron frame structure, designatedin its-entirety by numeral 1, the frame being formed with a horizontal top '2 and posite side walls 33'. The main drive s aft 4 for the mechanisms is mounted revolubly in the lower part of the frame in bearings 55 in the opposite side walls and this may be driven by any suitable means, such as through the belt wheel 6 and clutch mechanism 7 shown, and under the control of a hand lever 8 whereby the clutch may be shifted in and out of gear.

Rotatably supported, parallel with and somewhat above the shaft 4, is a shaft 10 mounted at its outer end in a bearing 11 in the side wall 3 and, at its inner end, in a bearing 12 formed in a bracket 13 that is fixed to and which extends inwardly from the'side wall 3'. At its inner end, this shaft has a cam 14 keyed thereon which, as presently described, has operative connection with the can end feed mechanism and also with mechanism which raises and lowers the spinning pad on which the ends are delivered to receive the lining compound. Toward its outer end, the shaft 10 is e uipped with a driving gear 15 which is ke e thereto in mesh with a clutch ear 13 revo uble on the shaft 4 but adapte to be driven thereby through connection with a clutch collar 17 which is slidabl keyed on the shaft 4 and adapted to be a justed into and from driving connection with the gear 15 by means of a shifting rod 18. The rod 18 is disposed parallel with and below shaft 4 and is slidably contained in bearings 1919' in the side walls 33 of the frame and, at its outer end, is equipped with a knob 20 servin as a handle whereby it may shifte A oke 21 is fixed to the rod to fit slidably wit in an encirclin groove 22 in the clutch collar 17 for shi ing the latter and a spring pressed ball 23 in a plugged bore 24 in the bearing 19 is adapted to seat within grooves 2525, formed in spaced relation about the rod, to yieldably retain the rod at its different positions of adjustment.

Mounted directly above the shaft 10, and parallel therewith, is a shaft 26 revoluble in bearings 2727 formed integral with the side wall 3', and keyed to the outer end of the shaft, is a driving gear 28 in mesh with a driven gear 29 that is keyed to the outer end of the shaft 10.

On the inner end of the shaft 26 is fastened a beveled gear 30 which drives a smaller, downwardly facing beveled gear 31 that is keyed to a sleeve 32 revolubly contained in a bearing 33' formed in a bracket 34 that is fixed within an opening 35 in the top wall of the frame. A vertical shaft 36 is slidably keyed within the sleeve 32 so as to be driven by the gear 31, and at the upper end of this shaft there is mounted a flat, circular pad 37 onto which the can ends are delivered toreceive the lining compound while being spun by the pad. For a purpose presentl described, the pad 37 is provided centra ly in its top with a recess 37 a. 1

The bracket 34, as shown best in Figures 1 and 2, is set down within a circular opening 35 in the top of the machine frame and it, in turn, is provided above the bearing 33 with a circular opening 38 Within which the pad 37 is contained. At its lower end the bracket is equipped with a bearing 40 in which a slide 41 is reciprocally contained. The slide is operatively connected with the cam 14 by. means of a cam roller 42 mounted on a stud 43 fixed in the slide; the roller being contained within the cam groove 14a which is so designed that rotation of the cam causes reciprocal action of the slide in its bearing.

Within the upper portion of the slide 41.is a bore 45 which receives the lower end portion of the shaft 36 and a ball bearing 46 is fitted to this end of the shaft and is slidable within the bore which also contain-s a coiled spring 47 disposed so as to bear upwardly against the outer raceway of the bearing to thereby urge the shaft upwardly. A collar 48 is threaded into the upper end of the bore for limiting upward movement of the raceway and serving with the spring 47 to effect a connection through which reciprocal action of the slide 41, under influence of cam 14, will cause a like reciprocal action of the shaft 36 which will-raise and lower the pad 37 within the circular openin 38 as it revolves.

It will be stated ere that for the accommodation of can ends of different dia' ieters, it is required to use pads 37 of different diameters, and in order that thr-e may be easily and quickly interchanged, We have made the brackets 34 easily and quickly removable; it being necessary only to remove the screw bolts 34a to release the bracket so that all parts mounted thereby may be lifted bodily from the machine forreplacement of similar parts of a desired size.

. Mounted on top of the frame 1 is a hopper 50 in which a supply of can ends 51 to be lined is contained. Each can end is provided with a peripheral groove 51a" for receiving the lining com ound and the outer edge of the roove is ormed with an inwardly curled ange 516 which retains thecompound during rotation of the end. The hopper consists of a plurality of upright uide rods 50a within which the stack of en 5 is confined. At their lowerends the rods are fixed within a base plate 54 which is removably secured by screw bolts 55 to the top plate 2 of the frame. The base plate has a circular opening 56 therein through which the ends feed downwardly from the hopper into the machine and a lateral passage 56a through which they are forwardly advanced.

Reciprocally mounted within the upper portion of the. frame, is a feed slide 58 connected pivotally by a link 59 with the upper end of an oscillatin lever 60 which, at its lower end, is ivota ly mounted on a cross i Q a of the frame. This lever, in turn, 1s connected by a link 62 with a stud 63 fixed eccentricall to the outer face of cam 14 dn shaft 10 so t at with each turn of the cam, the feed of feed bars 7 070 are attached adjustably theretol The bars; as shown best in Figures 2 and 8, are parallel and are disposed flatly on the to surface of the top plate 2 and are reciproca ly operable in guideways 71' 71 provided therefor within the base plate 5 of the hopper closely adjacent opposite sides of the opening 56 in the latter. The spacing of these bars is dependent on the diameter of the can ends being lined and it is for making adjustments for the'feeding of ends of different diameters. that the bars are adjustably attached to the cross bar 67 "Each of the feed bars 70 is provided at the inner side along its lower edge with an inwardly projecting flange 7 0a. These extend from the rearward ends of the bars to points approximately one-half the distance to their forward ends. Also, set within and extending lengthwise of the bars along their inner faces and in spaced relation above the flanges 70a, are strips 706. These extend somewhat beyond the forward ends of the flanges 70a and also terminate at some distance from the rearward ends of the feed bars. Also, near the forward ends of the-feed bars, in -alinement with the flanges 70a, are inwardly projecting feed lugs 7 0c. 7

- mechanism, it is thought suflicientto say that- Without going much into detail with respect to the operation of the above feed at the start of operations, with the feed bars retracted as shown in full lines inFigure 2, the stack of can ends when placed in the hopper will be supported at its side edges at its lower end upon the strips 7 0b projecting inwardly from the sides of the feed bar s: Then, as yhe feed bars are advanced to their forward imits of travel, the inner ends of the strips will pass forwardly from beneath the stack and the latter will drop onto the flanges 70a. On' the following retractive movement of the bars, the inner ends of the stack dividing strips 706 which are tapered andsharpened for this purpose, as shown in Figure 8, pass between the two lower can ends of the stack to separate the lower one from the stack proper. The supply stack is 63 then again supported by the strips 70?) and on the pad 37 while spinning.

the can end. just separated therefrom will, whenthebars reach their final retractive movement, drop from the forward ends of the flanges ,70aonto the top surface of the frame. ()n the next advance movement-of 70 the feed bars, the forward ends of the flanges 70a engage and advance the first released can end through the passage 56a onto the spinning pad 37 a d, on retraction thereof, a

second can end is separated from the stack as above described, for delivery to the pad ,with the next forward movem'ent of the bars.

Each advance movement of thefeed mechanism, after the first reciprocal action; causes the lugs 700 at the outer ends of the barsto engage with the can end just released from the pad 37 to advance it to the discharge station. Continuedreciprocal action of the feed mechanism effects the delivery, successively, of can ends'from the stack onto and then from the spinning pad; the movement of the lugs 700 from points beyond the pad 37 to positions at the inside thereof without displacing the can end from the pad is made possible by reason of the pad being in an elevated position during retraction of the bars, and thus clearance is providedbeneath the edges of the can 'end' on the pad through which the lugs'70c'pass when the feed bars are retracted.

At the time each can end is delivered by the feed bars 70 to the pad 37, the latter is in a lowered position within the circular opening 38 in the bracket within which it operates, and the end drops into the opening and is thereby automatically centered on the pad. Then, the revolving pad is raised by an upward shifting of the shaft 36 through its connection with the cam 14, and the can end is thereby lifted on the pad against a small,'

coaxially' arranged pad at the lower end of a spindle 81 slidably and yieldingly contained within a bearing 82 formed at the end of a bracket 83 that is rigidly fixed to the frame at one side". One of the purposes of .the upper pad is to hold the can end centered .In the upper portion of the bearing 82 is a slidably mounted stem 84 having an enlargement 85 at its lower end. A coiled spring 86 encircles the stem and bears downwardly against the enlargement to urge the stem downwardly.- This pressure of the spring also, through the medium of an antifriction ball 86 interposed between the enlargement 85 and the head of the spindle, 81,

51a while -the,can ends are held between the coa'xially alined, spinning pads 37 and 80, and the means whereby the compound is delivered to the ends in measured'quantities comprises a nozzle 90 that is supported at the end of The stud 93 is keyed a ainst turning in the arm 91 and after an a justment ofthe arm has been made, it may be locked b the tightening of a clampin bolt 95 exten ed through the split side of t e supporting bracket, as shown in Figures 4 and 5.

The flow of compound from the nozzle is under the control of a valve stem 96 that is mounted slidably within the nozzle housing with a tapered end 97 adapted to seat within the tapered tip of the nozzle to close the discharge opening. The valve stem extends from the upper end of the nozzle, through suitable packing, and is-operatively connected by means of a link 98 with the outer end of an actuating lever 99; the latter being mounted between its ends on a pivot 100 in the upper end of a supporting post 101 mounted by the arm 91. At its inner end, the lever 99 has a universal connection, with the upper end of a pull rod 102 which extends downwardly through the tubular stud 93 and, at its lower end, is pivot'ally connected with a cam lever 104; the latter being supported pivotally from the side wall 3 by? a bolt 105 and has a 'roller 106 at one-end engaging an adjustable cam 107 mounted on the shaft 10 just within the gear wheel 29. A coiled spring 110 is interposed between a collar 112 interposed between sections of the rod 102 and a support 113 to retain the cam collar in contact with the cam. The cam comprises relatively adjustable sections held in proper adjustment by a connecting bolt 108, and so set on the shaft that atnthe proper time during its rotative action, the lever 104 will be actuated to draw down on the rod 102 and this will normally operate, through the lever 99, to open the nozzle tip to permit the discharge of compound from the nozzle to the can end. A coiled spring 115 attached to the outer end of lever 99 and to the arm 91 normally holds the valve stem tightly seated.

For the purpose of preventing the dis-.

121 pivotally supported by a pin 122-so that a shoulder 121a near the upper end of the latch may swing into and from supporting engagement with a downwardly facing shoulder 123 on the post. The latch is ur ed into enga ement with the post shoulderg spring 125 that isdisposed between the latch and a latch actuating plate 126 that is also .pivotally mounted by the pivot 122 and adapted to be actuated by an arm 128 that is fixed by a bolt 129 to the enlargement 85 of the stem 84 that is slidably, contained in the upper part of the bearing 82, the arm 128 extending laterally from the bearing 82 and y a short coi ed serving to raise and lower the plate 126 and thereby actuate the latch 121 into and from supporting contact with the post 101 in accordance with the raising and lowering of the stem 84, i

During normal operation of the machine,

while can ends are being regularly advanced to the pad 37, each upward movement of the pad 37 lifts the can end deposited thereon against the pad 80 and this, in turn, [is lifted to effect a resultant upward movement of the stem 84 and the lifting of the latch plate 126 by the arm 128 and this moves the latch 121 into supporting abutment with the post shoulder as in Figure 4, so that the following action of the lever 99 by the cam 107 effects a discharge of com pound to the can-,en However, inthe event that no can en is delivered to the pad 37, upward movement of thelatter will effect no corresponding upward movement of the stem 84, since the pad 80 will in this event be received within the recess 37a in the top of ad 37 otherwise covered by the can ends; herefore, the post'supporting latch will remain in the released position, as shown in Figure 7, and will not be moved into supporting contact with the post shoulder, thereby providing that the following downward movement of the outer end ofthe lever 99 will result in its pivoting at its connection with the link 98 andthe post 101 sliding in its guideway to effect no action of the valve stem.

The sealing compound may be delivered to the nozzle by any suitable means, preferably throu h a conduit 135 connected therewith and w ich may lead. from a source of su pply preferably delivered under pressure so as to insure the flow. As the can ends are ad; vanced' by the feed bars from the pad '37, after'the lining compound has been applied thereto, they are received beneath a yield able plate 140 supported by posts 141 from a supporting bracket 142, suitable vance them froin'the machine; it being preferredto employ a certain type of feed. fingers 145 at the ends of the eed bars 70 which engage the ends with each advance movement of the bars so as to advance the ends from the machine. f j

Assuming the machine to he so construct ed, its operation'is as follows rFirst, a supply l .of can ends to be lined/is placed in the hopthrough the spindle 81 and stem 145 120 lift the arm 128 to actuate the latch bar 121 into su porting relation with the post 101. While the can end is thus held by the spinning'pads, the cam 107, through the connections shown, actuates the lever 99 to open. the valve in the nozzle to permit a certain amount of the compound tobe dischargid into the can flange. This compound, cause of the spinmng action of the can end, is caused to be evenly distributed within the groove and also to fill the flanged edge of the groove. Following the closing of the nozzle, the supporting pad 37 is lowered and the lined end is moved back into lowered position from which it is advanced by the feed bars from the pad to the discharge station; this bein coincident with the advancement of anot er can end from the hopper to the spinnin pad.

S liould it be'desired to adjust the mechanism for lining of ends of a different .diameter, the hopper is removed and replaced by one of the size required; then the feed bars 70 are adjustedto the properspacing for these ends and a pad 37 of a required size is placed on spindle 36, and then the arm 91 is adjusted to move the nozzle to theprop'er position with respect to the spindle for lining the ends of that diameter.

. Should itbe desired to causethe endsto be spun faster or slower, this is effected byl replacement of the gears 28 and 29 wit gears of proper proportion for the desired ee Proper timing of the nozzle. valve is obtained by adjustment of the cam I07 We claim: 1 1. In a can end lining machine, means for axially rotating can ends, a nozzle from which a lining compound may be discharged onto the ends as they are rotated, a support for,

the nozzle adjustable about astationary pivot to osition the nozzle for lining can ends of diiiierent diameters, means on the support for operating the nozzle. and an actuating meansfmay be used to remove them or ad;

to engage with the pad 80 which will operate member connected with said means through 'sald ivot.

2. a can end 'lining machine, a pad whereby can ends may be axially rotated, a

whereby its position may be adjusted relative to the pad to accommodate can ends of various diameters, a valve in the nozzle, a lever on the support for. operating the valve, and a pull rod connected with the lever for actuating it and which maintains its 0 erative connection therewith for all positions i of adjustment of the nozzle.

3 In a can end lining machine, a padon which can ends may be axially rotated, an arm having a supporting stud whereby the arm is mounted for adjustment relative to the pad, a nozzle carried by the arm from which a 1mm compound may be deliveredto can ends W ile being rotated, a control lever for the nozzle mounted on the arm and an actuating member extended to the levercoaxially of the stud and connected with the lever in such manner as to maintain an operative connection for all positions of adjustment of the arm.

.4. In a-.can end lining machine, a pad on which can ends may be axially rotated, a feed mechanism for deliveringcan ends onto and from the pad, an'arm having a supporting stud at oneend whereby it is mounted to swing to various positions of adjustment rel ative to the pad, a nozzle carried by the arm from which a lining compound may be delivered to the can ends while being rotated, a valve in the nozzle,'a lever pivotally mounted on the arm and connected at one end for actuating the valve, an actuating rod extended to the lever coaxially of the stud and having a universal connection with the lever whereby it maintains its operative connection for all positions of adjustment of the arm and means synchronized with the feed mechanismfor operating said rod for opening and closing the valve.

5. In a can end lining machine, a revolubly driven pad on which can ends may be axially rotated, a feed mechanism'for delivering can ends onto and from the pad, a bracket, a stud rotatably mounted in the bracket, an arm mounted on the stud and movable to various positions of adjustment, a nozzle carried by the arm from which a lining compound may be discharged to the can ends while being rotated, means for securing the arm and nozzle at different positions of adjustment, a valve in the nozzle, a lever pivotal ly mounted on the arm for actuating the a lever connected with the rod and actuated by the cam for opening and closing the nozzle valve.

6. In a can end lining machine, a sup orting ad on which can ends may be axial y rotate means for successively feeding can ends onto and from the pad, means 'for moving the pad upwardly as it rotates, a second pad axially alined with the supporting pad and adapted to be moved upwardly on y through the intermediacy of a can end carried on the supporting pad, a nozzle from which a linin complound may be delivered to the can en s as t ey rotate, a support for the nozzle that is adjustable relative to the pads to accommodate can ends of various gfiameters, and control means for opening and closing the nozzle and mechanism actuated by movement of the upper pad for rendering the said control means operative. 7. In a can end lining machine, a supporting pad on which can ends may be axially rotate means for successively feeding can ends onto and from the pad, means synchronized with the feed mechanism for lifting the padas it rotates, a second pad against which the can ends will be lifted by the supporting pad and which will be moved upwardly therewith only when a can end is in place on the supporting pad, a nozzle from which a lining compound maybe delivered to the can ends as they rotate, a support for the nozzle that is adjustable relative to the pads to accommodate can ends of various diameters, a'

control valve for the nozzle and an actuating lever for the valve and a support for the lever that is rendered efi'eotive incident to raising of theupper pad.

8. In a can end lining machine, a revolubly driven supporting pad on which can ends may be axially rotated and which has a central recess in its upper face, means for sues cessively feeding can ends onto and from the 'pad, means for raising the pad axially after a can end is delivered thereto, an upper pad axially alined with the supporting pad adapted to be lifted upwardly by the can end but which will be received within the recess of the lower pad without efl'ectingmovement when 'no can end is in place on the lower pad, a stud, an arm mounted to swing on the stud, a nozzle carried by the armfrom which a lining compound may be delivered to the can ends as they rotate,-a valve in the nozzle, a valve actuating lever, an actuating rod for the lever, a pivot post for the lever that is slidably mounted in the arm and a latch engageable with the post to hold it against movement to render the lever operative for actuating the valve; said latch bein movable into and from holding relation w1th the postincident to upward and downward movement of the upper pad.

' 9. In a can end lining machine, a supporting pad on which can ends may be axially rotated, means for feeding can ends onto and from the pad, means for raising the pad as I control lever for the valve mounted on the arm, an actuating rod for the lever extending thereto coaxially of the stud and maintaming its operative connection for all positions'of adjustment of the arm, a pivot post for the lever having a. slidable mounting in the arni, a latch ad acent thereto and adapted to be engaged therewith to prevent movement and to render the lever operative for opening the nozzle valve, and an arm ex- .tended from the supporting slide for moving the latch from and into, supporting relation with the post.

10. In a can end lining machine, a revolubly driven supporting pad on which can ends may be axially rotated, means for feeding can ends onto and from the ad, means synchronized with the feed mec anism for raising the pad as it rotates, an upper ad dis.-

posed coaxiall of the lower pad an adapted to be lifte through the intermediacy of can ends on the lower pad, a supporting slide for the upper pad, a bracket, a stud rotatable.

therein, an arm fixed to the stud and adjustable to various positions relative to said pads, means for looking it at various positions a nozzle carried by the arm from which a 11ning compound may be delivered to the can ends as they rotate, a yieldable valve normally closing the nozzle, a lever mounted on thearm for opening the valve, an actuating rod for the lever extending thereto ooaxially of the stud and maintaining its operative connection for all positions of adjustment of the arm, a supporting post for the lever vertically slidable in the arm, a

latch pivotally carried by the arm and adapted to be engaged with the post to revent slidable movement thereof, to ren er the lever operative for opening the valve and an arm' fixed to the slide of'the upper pad and extending laterally thereof for actuating the latch against'the post said last mentioned arm being effective for all positions of adjusgsment of the nozzle with respect to the a i P 11. In a can end lining machine, means for axially rotating can ends, an arm having a support at one end about which it is adjustable, a nozzle mounted at the other end of the arm, from which lining material may be discharged to the can ends while rotated by said means and means operating through the arm support for opening and closing the nozzle, and which maintains its operative connection for all positions of the arm.

12. In a can end lining machine, means for axially rotating can ends, a support having a pivot about which it is adjustable, a nozzle on the support from which lining material may be discharged to the can ends as they are rotated by said rotating means,

means coaxial of the said support for opening and closing the nozzle and which main tains its operativeness for all positions of radial adjustment of the support.

Signed at Seattle, Washington, this 25th day of September, 1928.

NELSON TROYER. PAUL E. PEARSON. 

